Read Installers Guide, Programmable Zone Sensor text version

ACC-SVN28A-EN 18-HD60D29-5

Installers Guide

Programmable Zone Sensor for Constant Volume (CV) Units and Heat Pump (HP) Units

Models:

BAYSENS019C ASYSTAT666C

Used With:

3 - 25 Ton Packaged Heat/Cool Units 3 - 20 Ton Packaged Heat Pump Units 27.5 - 50 Ton Packaged Rooftop Units 20 - 130 Ton Packaged Rooftop Units 20 - 80 Ton Commercial Self Contained Units

October 2004

Table of Contents

Icon Description ........................................................................... 3 Overview of Manual...................................................................... 4 Kit Inspection ................................................................................ 4 Sensor Mounting .......................................................................... 5 Conductors and Terminal Identification ........................................ 5 Wiring The Sub Base ................................................................... 6 Initial Power-Up ............................................................................ 7 Option Menu ................................................................................. 8 Programming Menu .................................................................... 11 Temporary Override Menu ......................................................... 13 Zone Sensor Status Indicators ................................................... 15 Battery Replacement .................................................................. 15 Trouble Shooting ........................................................................ 15

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General Information

Icon Description

1 - The four periods of the day used during programming. 2 - The seven days of the week used during programming and in the Normal Run State to indicate the current day. 3 - Four digits used to display the time of day in the Normal Run State. Also used in the Programming Menu, Temporary Override Menu, and the Options Menu. The Colon (:) blinks in the Normal Run State to indicate communication to the UCP is functioning. 4 - AM and PM used to display the time of day (Morning/Evening) in the Normal Run State when using the 12 hour time option. 5 - Days and Hours are used in the Temporary Override Menu to program the override time period. 6 - Displayed and Blinks during Temporary Override Operaton. 7 - Displayed in the Temporary Override Programming Menu. 8 - Programmable in the Programming Menu and is displayed in the Normal Run State to indicate the current Zone Status. 9 - When displayed, indicates the keypad is locked out. :To lock or unlock the keypad when this icon is shown, press and hold the positive (+) and negative (-) side of the TIME key simutaneously. 10 - Emergency Heat selection available when used with a heatpump application and programmed in the Options Menu. 11 - Displays the FAN operation Mode. 12 - Displayed in the Normal Run State when the Zone Temperature is programmed to be displayed in the Options Menu. 13 - Displayed only in the Options Menu. 14 - Two digits used to display the Zone Temperature when programmed in the Options Menu. 15 - Indicates unit operating status in the Normal Run State and is used in the Programming Menu and Temporary Override Menu to set the desired operating setpoints. 16 - Displayed in the Programming Menu and Temporary Override Menu to indicate the desired operating setpoints. 17 - Displayed and Blinks when the programmed Check Filter time has elapsed. 18 - Displayed and Blinks when a Cooling Failure has occured. 19 - Displayed during the unit self-test mode. 20 - Displayed and Blinks during Service Status and if Fan Failure occurs. 21 - Displayed and Blinks when a Heating Failure has occured. 22 - Displays the System operation Mode.

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General Information

Overview of Manual

Note: One copy of this document ships inside each Programmable Zone Sensor kit and is customer property. The unit's maintenance personnel must retain it.

This booklet describes step-by-step instructions for installing and programming the Programmable Zone Sensor. By carefully reviewing the information within this manual and following the instructions, the risk of improper operation and/or component damage will be minimized. Should equipment failure occur, contact a qualified service organization with qualified, experienced HVAC technicians to properly diagnose and repair this equipment. Remote Panel w/ NSB - BAYSENS019C This 7 day programmable sensor features 2,3 or 4 periods for Occupied or Unoccupied programming per day. If the power is interrupted, the program is retained in permanent memory. If power is off for an extended period of time, only the clock and day may have to be reset. The programmable sensor is compatible for use with UCP mirco control, ReliatelTM mirco control or IntelliPakTM control systems. The Zone Sensor allows selection of four system modes (Heat, Cool, Auto, and Off), two fan modes (On and Auto). It has dual temperature selection with programmable start time capability. The occupied cooling set point ranges between 45 and 98 degrees Fahrenheit. The heating set point ranges between 43 and 96 degrees Fahrenheit. A liquid crystal display (LCD) displays zone temperature, temperature set points, day of the week, time, and operational mode symbols. The Option Menu is used to enable or disable applicable functions, i.e.; Morning Warm-up, Economizer minimum position override during unoccupied status, Fahrenheit or Centigrade, Supply air tempering, Remote zone temperature sensor, 12/24 hour time display, Smart fan, and Computed recovery. During an occupied period, an auxiliary relay rated for 1.25 amps @ 30 volts AC with one set of single pole double throw contacts is activated.

Note: The procedures discussed in this manual should only be performed by qualified, experienced HVAC technicians.

Kit Inspection

Upon receipt of the kit, immediately note; [ ] Any visible damage to the exterior shipping package. Record any damage on the shipping documents. Specify the type and extent of the damage on the "bill of lading" before signing. [ ] Unpack the contents and carefully inspect it for obvious damage due to shipment. [ ] If concealed damage has occurred, notify the carrier's terminal of the damage immediately by phone and by mail. Concealed damage must be reported within 15 days. [ ] Do not remove damaged material from the receiving location. Take photos of the damage, if possible. The owner must provide reasonable evidence that the damage did not occur after delivery. [ ] Check for material shortages. Within the package you should find; 1 - Sensor Module, 1 ­ Package of mounting hardware, and; 1 - Installation and operation manual. Contact the Parts Center nearest your area should there be any damaged or missing components.

Sensor Mounting

1. Mounting location. - Choose a location on an interior wall near the return air grille, approximately five feet above floor level, where air circulates freely and is of average temperature for the zone. - Avoid areas such as: behind doors; on outside walls, or any walls with unconditioned areas behind the sensor; in direct sunlight, or any source of radiant heat that could affect the temperature measurements; in line with the discharge air from the unit being controlled. 2. Mounting the sub base. The mounting hardware is contained in a plastic bag that includes; 3 - plastic wall anchors 3 ­ mounting screws 1 ­ terminal strip (TB), set aside for later use. - Remove the sensor from its sub base. Hold the Sensor with one hand and firmly grasp the sub base with the other hand. Gently pull the bottom, away and upward. Refer to Figure 1. After disassembling the sensor, protect the internal

Note- 20 - 130 Ton IntelliPak: In order for setpoints provided by the ZSM to be recognized by the unit, setpoint source selections at the Human Interface must be set to NSB SETPOINT INPUT.

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Installation

surface from contacting objects or substances that could cause damage. - To determine the appropriate number of wires required, refer to Figure 3. - Route the wires from the wall through the wire access hole in the sub base. Refer to Figure 2. - Mount the sub base directly on the wall or on a 2X4 handy box (Handy Box must be installed Horizontally). To mount the sub base directly on the wall, hold it in place and mark the three holes. Drill three 3/16 inch (4.8 mm) holes. Gently tap the plastic anchors into the holes until they are flush with the wall. Level the sub base and firmly tighten the mounting screws. OVER TIGHTENING THE SCREWS could crack the sub base. To mount the sub base on a 2X4 handy box mounted horizontally, Level the sub base and firmly tighten the mounting screws. OVER TIGHTENING THE SCREWS could crack the sub base. If the handy box is installed vertically, a mounting plate and adapter kit (#BAYMTPL003B) is required. Follow the instructions that are enclosed with the mounting kit. - Seal the hole in the wall behind the sub base.

Figure 2

Mounting the Sub Base

Figure 3

Terminal Strip Wiring

SUBBASE

Figure 1

Removing the Sensor from the Sub Base

TERMINAL BLOCK PC BOARD

Conductors and Terminal Identification

Operating Power (2 Wires) 24 VAC power supplied from the Unit Control provides the operating power for the ZSM. The power supply should be connected to the terminals 11 & 14 on the ZSM.

IntelliPak Note: Supply Voltage is 12 - 15 VAC

Remote Zone Temperature Sensor (2 Wires Optional) The ZSM supports the use of a remote zone temperature sensor. The remote sensor should be a thermistor type sensor (Baysens017). When connecting the remote sensor, use terminals S1 and S2 on the ZSM. Connect the Shield wire (drain wire) from the shielded cable to terminal 11 on the ZSM.

A1

O

A2

O

A3

O

7

O

8

O

9

O

10

O

11

O

12

O

14

O

S1

O

S2

O

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Installation

Note: When using a remote sensor, Option # 11 in the OPTION MENU must be set to "1".

Communication (1 Wire) Data communication between the UCM and the ZSM is accomplished over a serial link connected at terminal 12 on the ZSM. UCM Status Inputs (4 Wires Optional) The ZSM can be wired to receive four (4) operating status signals from the UCM (HEAT, COOL, SYSTEM "ON", SERVICE). Four (4) wires from the UCM should be connected to the appropriate terminals (7, 8, 9 & 10) on the ZSM. Auxiliary Relay (3 Wires Optional) The auxiliary relay located on the ZSM is energized during OCCUPIED periods. The auxiliary relay is form C, rated for 1.25 Amps at 30 VAC. Figure 3 illustrates the terminal configuration.

Wiring The Sub Base

Connecting the wires 1. Strip approximately ¼ inch of insulation from each wire and connect the wiring to the appropriate terminals at the

unit control panel. 2. Remove the Terminal Block from the hardware package and connect the wiring to the appropriate terminals at the Zone Sensor sub base. In general, zone sensor connec-

tions use the convention of connecting Zone Sensor terminals to like numbered Unit terminals (1 to 1, 2 to 2, etc.). Refer to Figure 3. 3. Firmly tighten each screw terminal. 4. Attach the terminal block to the Sensor PC Board. 5. Fit the wires as close to the sub base as possible. Be sure to push the excess wire into the wall and plug the hole with nonflammable insulation to prevent drafts from affecting the sensor.

Note: Guidelines for wire sizes and lengths are shown in Table 1. The total resistance of these low voltage wires must not exceed 2.5 ohms per conductor. Any resistance greater than 2.5 ohms may cause the control to malfunction due to excessive voltage drop.

Note: Do not run low-voltage control wiring in same conduit with high-voltage power wiring.

Note: Do Not Coil Excess Wire Inside Sub Base! Push All Excess Wire Inside Handy Box Or Inside Wall Cavity.

6. Replace cover. Place the zone sensor on the sub base by hooking the top two tabs on the Zone Sensor Module to the slotted tabs on top of the sub base. Swing the ZSM straight down onto the sub base until you hear the plastic locking mechanism snap securely into place.

Table 1

Zone Sensor Maximum Lengths and Wire Size

Distance from Unit to Control Feet Meters 0 - 150 0 - 46 151 - 240 47 - 73 241 - 385 386 - 610 611 - 970 74 - 117 118 - 185 186 - 296

Recommended Wire Size Area 22 gauge 20 gauge 18 gauge 16 gauge 14 gauge 0.33 mm 2 0.50 mm 2 0.75 mm 2 1.30 mm 2 2.00 mm 2

Note: If the wire bundle is large, it may cause the terminal strip to become disconnected. Secure the wires to the sub base using a small wire tie.

Figure 3

Zone Sensor Connection Diagram

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Programming and Operation

Initial Power-Up

Before applying power to the unit, verify that all wiring is correct. When the power to the unit has been turned "On", the ZSM will be in the Normal Run State and will begin operating using the factory default settings. The correct day and time settings will need to be verified or set. Refer to the Normal Run State screen below. To set the time, simply press the ("+") or ("-") side of the KEY marked TIME. Press the positive ("+") side to advance the time in one minute intervals. Press the negative ("-") side to decrease the time in one minute intervals. Press and hold either side of the KEY to make rapid changes. When the correct time is reached, release the TIME KEY and the time will be set. To set the day, simply press the DAY KEY until the correct day is displayed. The programmable zone sensor is equipped with a battery backup which will retain the time for up to two hours. See page 14 for battery replacement.

Note: Programming schedule is retained in EPROM and will not be affected by battery loss.

Normal Run State Screen

PROGRAM Time of Day Hour/Minute Indicates morning or afternoon Indicates Operating Period Indicates Keypad Lockout Status HOLD TEMP Indicates System Operating Status Indicates Fan Status Indicates Room Temperature

MODE

TIME

HEAT COOL

AM

OCCUPIED

COOL

FAN AUTO

DAY

ROOM TEMP

ERASE

MODE

FAN

Key Press

Action

PROGRAM ...................... Enter Program Screen Time + .............................. Scrolls Clock Forward Time - ............................... Scrolls Clock Backwards Day ................................... Advances Current Day Hold Temp ........................ Enter Temporary Override Menu Mode ................................ Advances one position for Mode selection Fan (CV/HP only) ............. Toggles Fan Operation Setting or Enters Temporary Override Menu if Option 10 is set to 1 UP Arrow .......................... Switches to Temporary Override and Increases Temp Set Point DOWN Arrow ................... Switches to Temporary Override and Decreases Temp Set Point Erase ................................ Turns off Check Filter Icon, Turns off BEEP until the next day when a HEAT FAIL or COOL FAIL Icon ......................................... is Displayed Time + and simultaneously for 4 seconds ................... Toggles Keypad Lockout if Option 14 is set to 1 PROGRAM and MODE simultaneously for 4 seconds ................... Enter Option Menu Screen

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Programming and Operation

Option Menu

The Option Menu is used to set all programmable options built into the ZSM. All options are retained in permanent memory. To display the Option Menu Screen, simultaneously press and hold the MODE KEY and the PROGRAM KEY for 4 seconds. When the Option Menu Screen is displayed, only the UP and DOWN arrows and the TIME ("+") and ("-") KEY are active. Pressing the UP or DOWN arrow advances to the next available option in the menu. Pressing the TIME ("+") and ("-") KEY changes the option value associated with each option number. Refer to the Option Menu Screen illustration and the ZSM options and option values table with a description of each option. Refer to this table while viewing or programming the sensor.

Note: Changing option 9 or 10 will erase the current program setting.

Once the option values have been reviewed or reset, simultaneously press and hold the MODE KEY and the PROGRAM KEY for 4 seconds to return to the Normal Run State. If no KEY is pressed, the ZSM will return to the Normal Run State after 1 minute has elapsed.

Option Menu Screen

PROGRAM

TIME

15

OPTION

DAY

ERASE

HOLD TEMP

MODE

FAN

Key Press

Action

PROGRAM and MODE simultaneously for 4 seconds ................... Enter Option Menu Screen Time + .............................. Advances Option Value Time - ............................... Previous Option Value UP Arrow .......................... Advances Option Number DOWN Arrow ................... Previous Option Number PROGRAM and MODE simultaneously for 4 seconds ................... Exit Option Menu Screen, Returns to Normal Run State 60 seconds without pressing any key .............. Exit Option Menu Screen, Returns to Normal Run State

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Programming and Operation

Option 1 Function Morning warm-up Option Value 0 = Disabled 1 = Enabled Default 0 Description When enabled, Heat is turned on if the Zone temperature is 2 degrees below the heat set point temperature when the program switches from unoccupied to occupied. The heat will terminate after 60 minutes regardless if the set point has been reached. When enabled, the minimum position of the economizer damper is overridden during the unoccupied period. Displays the temperature in the selected format. When enabled, sends the tempering signal to the UCP. Sets Clock to 12 hour format with AM and PM or 24 hour military time. When enabled, the supply fan operates in the AUTO mode during unoccupied periods regardless of FAN setting. When enabled, offsets the set point temperature and starts the system before the scheduled occupied period to efficiently reach the occupied temperature set point. The time is calculated based on a recovery rate of 6 degrees per hour. If option 19 is set for HP, this option is disabled during EMERgency heat operation. 0 allows all 7 days to be individually programmed. 1 allows Mon Fri, Sat & Sun to be programmed separately. 2 allows Mon - Fri and Sat - Sun to be programmed the same. 3 uses the same program for each day of the week. If 2 is selected, only Day and Nite periods can be programmed. If 3 is selected, Morn, Day, and Nite can be programmed. If 4 is selected, Morn, Day, Eve, and Nite can be programmed. If allowed, Supply Fan operation can be programmed for On or Auto operation for each programmed period. Determines which source will supply the Room Temperature input for display. Adjustable in 50 hour increments. The CHECK FILTER icon will flash when the accumulated run time is greater than the interval setting. If ZSM is in a Normal Run State or in Temporary Override, the zone temperature will be displayed. When Enabled, Keypad can be locked out. Sets the default override time in hours. Buzzer will sound for a 1/2 sec for every minute if option is set for 1 or 2.

2 3 4 5 6 7

Economizer minimum position override Temperature Scale Supply Air Tempering Time Clock Smart Fan Intelligent Temperature Recovery

0 = Disabled 1 = Enabled 0 = Fahrenheit 1 = Centigrade 0 = Disabled 1 = Enabled 0 = 12 hour 1 = 24 hour 0 = Disabled 1 = Enabled 0 = Disabled 1 = Enabled

1 0 0 0 1 0

8

Programmable Days/Week

9

Programmable Periods/Day Programmable Fan Operation Remote Sensor Installed Check Filter Interval

0 = 7 days (M, T, W, T, F, S, S) 1 = 3 days (M-F, S, S) 2 = 2 days (M-F, S-S) 3 = 1 day (Sun-Sat) 2, 3, 4

0

4

10 11 12

0 = Disallowed 1 = Allowed 0 = No 1 = Yes 0 = Disabled 3000 to 50 in 50 hour increments 0 = No 1 = Yes 0 = Disabled 1 = Enabled 1, 2, 3, 4, 5 0 = Key Press Only 1 = Key Press and Check Filter 2 = Key Press, Check Filter, and System Failure Zone Temperature Displayed 0 = 1024 baud 1 = 1200 baud 0 = CV 1 = HP 45 to 98 43 to 96 45 to 98 43 to 96

0 0 350

13 14 15 16

Display Zone Temperature Keypad Lockout Enabled Default Temporary Override Time Buzzer Options

1 1 3 1

17 18 19 20 21 22 23

Zone Temperature Calibration Baud Rate CV or HP Operation Default Cooling Set Point Default Heating Set Point Minimum Cooling Set Point Maximum Heating Set Point

0 offset 1 0 74 68 45 96

This allows for field calibration in 1.0 degree increments of either the internal sensor on the ZSM or the remote sensor if used. Set to Zero for 3 - 25 Ton Voyager Units built before Jan. 1, 1996 that have the original UCP. This sets the operation MODE for the ZSM. If HP is selected, EMERgency heat is available. If no set point has been programmed or the program is lost, the value set here becomes the operation set point. If no set point has been programmed or the program is lost, the value set here becomes the operation set point. Sets the minimum programmable cooling temperature set point. Sets the maximum programmable heating temperature set point.

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Programming and Operation

Program Record Example

Program Record Day # Morn Day Eve Nite Start Time Heat Set Point Cool Set Point Occupied/Unoccupied Occ / Unocc Occ / Unocc Occ / Unocc Occ / Unocc

Programming Menu

Before entering the Programming Menu, select the MODE of operation using the MODE KEY. If the HEAT or EMER Mode is selected, then only the heating set points can be programmed. If the COOL Mode is selected, then only the Cooling set point can be programmed. If the AUTO or OFF Mode is selected, then both the Heating and Cooling set points can be programmed. Once you have toggled to the program screen, the week is divided into 7 days and each day is divided into 4 periods. You will have 28 possible program settings. Use the Weekly Programming Record, enter each of the programmed settings for future use. Refer to the Program Menu Screen illustration. Programming without INTELLIGENT COPY 1. From the Normal Run State, press the PROGRAM KEY. 2. If desired, all preset-programmed values can be removed by holding the ERASE KEY down for 5 seconds. 3. Press the DAY KEY repeatedly until the desired day of the week is displayed. 4. Press the PROGRAM KEY repeatedly until the desired period (MORN, DAY, EVE, NITE) and desired mode (HEAT and/or COOL) is displayed. 9. Pressing the ERASE KEY will erase the Start Time and Desired set points. They can be left blank or re-entered using steps 5 through 8.

Note: When a set point for any of the 4 daily periods are left blank in an OCCUPIED period, the ZSM will control to the last OCCUPIED set point. The same will occur for an UNOCCUPIED period.

10. Press the PROGRAM KEY once to advance to the next period of the day. If the programming is for the last period of the day, the display will cycle to the first period of the same day. To advance to the next day, press the DAY KEY and repeat steps 5 through 10. 11. Press and hold the PROGRAM KEY for 2 seconds to exit the Programming Menu. Programming with INTELLIGENT COPY INTELLIGENT COPY is a method of quickly programming all or many of the days that will use the same program. To program Monday through Friday, only one week day needs to be programmed. Likewise, to program the weekend, only one weekend day needs programming. For INTELLIGENT COPY to function; Option 8 in the OPTIONS MENU must be set to 0 and; All programmed periods and set points must be erased. 1. From the Normal Run State, press the PROGRAM KEY. 2. Use the DAY KEY to select a weekday.

ä

ä

Note: If AUTO was selected in the Normal Run State, pressing the PROGRAM KEY will toggle between the desired period of the day and the Cooling and Heating set points.

5. Use the TIME KEY to set the Start time for the period. 6. Use the UP and DOWN arrows to set the desired operating set points. The ZSM will maintain a 2-degree F (1 degree C) deadband between the Heating and Cooling set points by automatically changing the non-displayed set point stored in memory. 7. Press and hold the UP AND DOWN arrows simultaneously for 2 seconds to toggle between the status of the zone (OCCUPIED AND UNOCCUPIED). 8. Press the FAN KEY to program the fan to be either ON or AUTO for this period.

3. Set the Start Time, the Set Points, and the operating Status of the Zone for each period of the selected day. INTELLIGENT COPY will copy these parameters to the other weekdays. 4. Repeat steps 1 through 4 for a weekend day. 5. Press the DAY KEY to complete the procedure. Press and Hold the PROGRAM KEY for 2 seconds to return to the Normal Run State. 6. Now that all of the parameters are set, by scrolling through each day and the period for that day, changes can be made to the program without affecting other days and periods.

Note: This feature will not be available if option 10 in the OPTIONS MENU has been set to 0.

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Programming and Operation

Program Menu Screen

PROGRAM

MODE

TIME

HEAT

AM

OCCUPIED

COOL

FAN AUTO

68

ROOM TEMP

DAY

ERASE

HOLD TEMP Visible if Option 10 is set to 1

MODE

FAN

Key Press

Action

PROGRAM ...................... Enter Program Screen ....................................................... Advances to Next Period of the Day ......................................... If Mode is Set to AUTO Changeover ....................................................... Toggles from Cool to Heat ....................................................... Advances to the Next Period of the Day Time + .............................. Increases Start Time for each Period of the Day Time - ............................... Decreases Start Time for each Period of the Day Day ................................... Advances Current Day Mode ................................ Toggles between Cool and Heat Set Points Fan (CV/HP only) ............. Toggles Fan Operation Setting if Option 10 is set to 1 UP Arrow .......................... Increases Desired Set Point DOWN Arrow ................... Decreases Desired Set Point Erase ................................ Erases Period Start Time and Desired Cool and Heat Set Point Press and Hold Erase for 5 seconds ................... Erases the entire program (Display will go blank for 1 second ......................................... after the 5 seconds have elasped. Press and Hold Program for 2 seconds ................... Exit Program Screen and return to Normal Run Screen 20 seconds without pressing any key .............. Exit Program Menu Screen, Returns to Normal Run State

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Programming and Operation

Temporary Override Menu

The Temporary Override Menu is used to change temperature set points, Mode of Operation, and the Zone status (OCCUPIED or UNOCCUPIED) for a designated length of time without having to change what typically would be the Normal Program. If Option 10 is set to 1, then the Fan Mode will be displayed and programmable. Refer to the Temporary Override Menu screen illustration. Entering the Temporary Override Screen Once the override program has begun and the Keypad Lockout is disabled, the MODE KEY will allow the operator to change the System Mode. The ERASE KEY can only be used to cancel the CHECK FILTER signal if displayed. The FAN KEY will exit the Temporary Override Program and enter the Temporary Override Menu screen. All other keys are disabled. Refer to the Temporary Override screen illustration. To Exit the Temporary Override program;

Note: Changing option 9 or 10 will erase the current program setting.

To enter the Temporary Override Menu; 1. From the Normal Run State, press the HOLD TEMP KEY or either the UP or DOWN KEY. 2. The HOURS icon located under the right two digits of the clock will be blinking. Press the Positive ("+") side of the TIME KEY to increase the number of hours the override program will last. Press the Negative ("-") side of the TIME KEY to decrease the number of hours. 3. Press the DAY KEY to toggle from the Hours icon to the Days icon. Press the Positive ("+") side of the TIME KEY to increase the number of days the override program will last. Press the Negative ("-") side of the TIME KEY to decrease the number of days. Press the UP or DOWN arrows to program the temperature set points (HEAT and/or COOL). Use the MODE KEY to toggle between the Modes if applicable. Press the FAN KEY to program the fan for ON or AUTO operation during the override period. Press and hold the UP and DOWN arrows simultaneously for 2 seconds to toggle the zone status between OCCUPIED and UNOCCUPIED. Pressing the ERASE KEY will cancel any override programming and return the sensor to the Normal Run State. Press the HOLD TEMP KEY to confirm the program and to start Temporary Override. If no keys are pressed, the sensor will return to the Normal Run State and ignore the override program. Press and hold the Positive ("+") and Negative ("-") keys simultaneously for 5 seconds to lock key pad. Press and hold the Positive ("+") and Negative ("-") keys simultaneously for 5 seconds to unlock key pad.

1. Press either of the UP or DOWN arrows, the HOLD TEMP KEY, or the FAN KEY. (Returns sensor to the Temporary Override Menu) 2. To change the program parameters, refer to the previous programming steps 2 through 8. 3. To return to the Normal Run State from the Temporary Override Menu, press the ERASE KEY.

4.

5. 6.

7.

8.

9.

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Programming and Operation

Temporary Override Menu Screen

PROGRAM

8:88

DAYS HOURS OVERRIDE TIME

MODE

TIME

HEAT

COOL

OCCUPIED

FAN AUTO

68

DAY

ERASE

HOLD TEMP Visible if Option 10 is set to 1

MODE

FAN

Key Press

Time + ................................... Time - ................................... Day ........................................ Hold Temp ............................. Program ................................ Mode ..................................... Fan (CV/HP only) ................. UP Arrow .............................. DOWN Arrow ........................

Action

Increases OverrideTime Decreases OverrideTime Toggles between blinking Hours and Days Exit Override Menu and begins Temporary Override Program Toggles between Cool and Heat Setpoints Toggles Fan Operation Setting if Option 10 is set to 1 Increases Desired Set Point Decreases Desired Set Point

UP and DOWN Arrow simultaneously for 2 seconds ........................ Toggles between Occupied and Unoccupied (Period blinks as soon as buttons are pressed Erase .................................... Cancels Override Programming and returns to Normal Run State 20 seconds without pressing any key .................. Exit Program Menu Screen, Returns to Normal Run State

Override Run State Screen

PROGRAM

Mo

9:45

AM OVERRIDE

MODE

TIME

COOL

Blinking indicates Program in Override

OCCUPIED

FAN AUTO

76

ROOM TEMP

DAY

ERASE

HOLD TEMP

MODE

FAN

Key Press

Hold Temp ............................. Mode ..................................... Fan (CV/HP only) ................. UP Arrow .............................. DOWN Arrow ........................ Erase ....................................

Action

Enter Temporary Override Menu Advances one position for MODE selection Toggles Fan Operation Setting if Option 10 is set to 1 Enter Temporary Override Menu Enter Temporary Override Menu Cancels Override Programming and returns to Normal Run State

Time+ and simultaneously for 4 seconds ............................. Toggles Keypad Lockout if Option 14 is set to 1

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Programming and Operation

Zone Sensor Status Indicators

The Unit Control Processor has the capability of communicating four input signals (HEAT, COOL, ON, SERVICE) to the respective Zone Sensor Module (ZSM) icons when appropriately wired. Each of these Zone Sensor icons will respond to the Controller in 1 of 3 conditions;

OFF ­ No icon will be displayed when the unit is not operating. ON ­ Indicates that the unit is operating in the Mode reflected by the illuminated icon. FLASHING ­ Indicates that the system is not operating properly and some type of service may be required. The Controller Status Input conditions and the respective zone sensor terminals are; Terminal # 7 ­ (HEAT Icon) ON ­ Indicates by a continuously illuminated icon that the unit is operating in the Heating Mode. FLASHING ­ The HEAT FAILURE icon indicates that a system failure in the Heating Mode has occurred. Terminal # 8 ­ (COOL Icon) ON ­ Indicates by a continuously illuminated icon that the unit is operating in the Cooling Mode. FLASHING ­ The COOL FAILURE icon indicates that a system failure in the Cooling Mode has occurred. Terminal # 9 ­ (ON Icon) OFF ­ The Colon (:) displayed in the Clock is not flashing, the System is OFF. ON ­ The Colon (:) displayed in the Clock is flashing, the System is ON. FLASHING ­ The TEST icon indicates the System is operating in the Test Mode. Terminal # 10 ­ (SERVICE Icon) ON - Indicates by a continuously illuminated icon that the unit requires service. FLASHING ­ Indicates that a Fan Failure has occurred and service is required.

Battery Replacement

To replace the battery, depress the metal retainer clip and the battery will spring forward. Refer to the illustration for battery and clip location. Replace the battery with CR2032 Lithium 3V or equivalent.

Note 1: Voyager 27.5 - 50 Ton - For Combination Diagnostics (ie. Cool Fail plus Heat Fail) See Unit IOM or Diagnostics Label on the unit control box door.

If number 2 is selected for option 16 in the Options Menu, any of the FLASHING signals will sound an audible buzzer. To reset the buzzer, press the ERASE Key.

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Programming and Operation

Trouble Shooting

Problem

Display does not come on. No communications to the UCP.

Solution

Check the 24 VAC power supply at terminals 11 and 14 at the Zone Sensor. Verify that the terminal block is properly positioned on its pins. Check for 22 to 32 VDC between terminals 11 and 12 at the Zone Sensor. Check wiring if no voltage is present. 1. Verify that Option 11 in the Options Menu is set correctly. If correct, check the wiring from the remote sensor at terminals S1 and S2 for a shcrted condition. 2. If Option 11 in the Options Menu is set to 0, then the local thermistor is selected and the on-board thermistor is shorted and the ZSM must be replaced. 1. Verify that Option 11 in the Options Menu is set correctly. If correct, check the wiring from the remote sensor at terminals S1 and S2 for a open circuit condition. 2. If Option 11 in the Options Menu is set to 0, then the local thermistor is selected and the on-board thermistor is open and the ZSM must be replaced. Verify that number 1 has been selected for option 13 in the Options Menu. Verify that the Keypad is not in the Lockout Mode. Press and hold the TIME ("+") and ("-") Key for 4 seconds to unlock the keypad.

Displayed Zone Temperature reads Sh and the COOL FAIL icon is continuiously illuminated.

Displayed Zone Temperature reads oP and the COOL FAIL icon is continuiously illuminated.

Zone Temperature is not displayed. ZSM keypad does not respond to selection

The Clock requires reprogramming after short Replace Battery. power interruptions. FAN Mode is set in the ON position but the Fan Check option 6 in the Options Menu. Refer to the Options Menu section for is not running. option description. System is operating before the programmed Check option 7 in the Options Menu. Computed recovery option overrides start time. the last part of an unoccupied period to obtain the occupied setting in time. Buzzer indicates System Failure or Service is Press the ERASE Key to reset the filter lapse timer. Buzzer will be reset required. until noon of the next day if a System Failure has not been corrected. "99" is Displayed. Space temperature is above or below the measurable range. Note: To reset the program and initiate a Self Diagnostic Test; press the PROGRAM KEY, HOLD TEMP KEY, and DAY KEY simultaniously.

ACC-SVN28AEN

15

Literature Order Number File Number Supersedes Stocking Location

ACC-SVN28A-EN SV-UN-ACC-ACC-SVN28A-EN New Webb Mason

The manufacturer has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice.

16

ACC-SVN28A-EN

Information

Installers Guide, Programmable Zone Sensor

16 pages

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